Merge branch 'master' of github.com:park-python/course

.gitignore

@@ -95,3 +95,6 @@ ENV/
 
 # Rope project settings
 .ropeproject
+
+lectures/09_Web_Development/project/env
+lectures/09_Web_Development/project/music/sqlite3.db

lectures/09_Web_Development/project/music/core/admin.py

@@ -0,0 +1,20 @@
+from django.contrib import admin
+
+from .models import Artist, Genre, Ruble
+
+# Register your models here.
+
+
+@admin.register(Artist)
+class ArtistAdmin(admin.ModelAdmin):
+    pass
+
+
+@admin.register(Genre)
+class GenreAdmin(admin.ModelAdmin):
+    pass
+
+
+@admin.register(Ruble)
+class RubleAdmin(admin.ModelAdmin):
+    pass

lectures/09_Web_Development/project/music/core/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class CoreConfig(AppConfig):
+    name = 'core'

lectures/09_Web_Development/project/music/core/migrations/0001_initial.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.3 on 2016-11-22 17:00
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Artist',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Genre',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Ruble',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('nominal', models.IntegerField(default=1)),
+                ('artist', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='core.Artist')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='artist',
+            name='genres',
+            field=models.ManyToManyField(blank=True, null=True, to='core.Genre'),
+        ),
+    ]

lectures/09_Web_Development/project/music/core/migrations/0002_artist_avatar.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.3 on 2016-12-05 06:27
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='artist',
+            name='avatar',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]

lectures/09_Web_Development/project/music/core/models.py

@@ -0,0 +1,48 @@
+from django.db import models
+import cent
+
+
+class Genre(models.Model):
+    title = models.CharField(max_length=255)
+
+    def __str__(self):
+        return self.title
+
+
+class Artist(models.Model):
+    name = models.CharField(max_length=255)
+    avatar = models.CharField(max_length=255, blank=True, null=True)
+    genres = models.ManyToManyField(Genre, blank=True, null=True)
+
+    def calculate_capital(self):
+        capital = self.ruble_set.aggregate(nominal=models.Sum("nominal"))
+        return capital.get('nominal') or 0
+
+    def __str__(self):
+        return self.name
+
+
+class Ruble(models.Model):
+    nominal = models.IntegerField(default=1)
+    artist = models.ForeignKey(Artist, blank=True, null=True)
+
+    def __str__(self):
+        return "{} ({})".format(self.nominal, self.artist.name)
+
+    def push_capital(self):
+        client = cent.Client("http://localhost:9000", "secret", timeout=1)
+        try:
+            client.publish("updates", {
+                "artist": self.artist.id,
+                "capital": self.artist.calculate_capital()
+            })
+        except cent.CentException:
+            pass
+
+    def delete(self, **kwargs):
+        super(Ruble, self).delete(**kwargs)
+        self.push_capital()
+
+    def save(self, **kwargs):
+        super(Ruble, self).save(**kwargs)
+        self.push_capital()

lectures/09_Web_Development/project/music/core/static/core/css/core.css

@@ -0,0 +1,77 @@
+*, *:before, *:after {
+    box-sizing: border-box;
+}
+
+body, html {
+    margin: 0;
+    padding: 0;
+    background-color: #2C1B35;
+}
+
+.table {
+    display: table;
+    width: 100%;
+    position: absolute;
+    height: 100%;
+}
+
+.table-cell {
+    display: table-cell;
+    vertical-align: middle;
+}
+
+.leader {
+    list-style-type: none;
+    padding: 0;
+    margin: 0 auto;
+    width: 420px;
+    height: 390px;
+}
+
+.leader li {
+    background-color: #fff;
+    border-radius: 5px;
+    height: 100px;
+    margin-bottom: 10px;
+    overflow: hidden;
+    box-shadow: 0 5px 5px rgba(0, 0, 0, 0.1);
+}
+
+.leader li .list_num {
+    float: left;
+    line-height: 40px;
+    font-size: 18px;
+    color: rgba(0, 0, 0, 0.65);
+    margin: 15px;
+    font-weight: bold;
+    width: 20px;
+    text-align: right;
+    margin-left: 10px;
+}
+
+.leader li h2 {
+    display: block;
+    margin: 0;
+    font-size: 18px;
+    line-height: 40px;
+    font-weight: 300;
+    margin-top: 15px;
+    padding-right: 20px;
+}
+
+.leader li h2 .number {
+    float: right;
+    font-weight: bold;
+    color: rgba(0, 0, 0, 0.65);
+    -webkit-transition: color 0.3s;
+    transition: color 0.3s;
+}
+
+.leader li img {
+    width: 80px;
+    height: 80px;
+    float: left;
+    margin: 15px 20px;
+    margin-left: 0;
+    border-radius: 100%;
+}

lectures/09_Web_Development/project/music/core/static/core/js/core.js

@@ -0,0 +1,35 @@
+$(function () {
+    var centrifuge = new Centrifuge({
+        "url": "http://localhost:9000/connection/websocket",
+        "insecure": true
+    });
+    centrifuge.subscribe("updates", function(message) {
+        handleUpdate(message);
+    });
+    centrifuge.connect();
+});
+
+function handleUpdate(message) {
+    console.log(message);
+    var artistID = message.data.artist;
+    var capital = message.data.capital;
+    var artist = $("#artist"+artistID);
+    var num = artist.find(".number");
+    num.text(capital);
+    sort();
+}
+
+function sort() {
+    var leaderBoard = $('#leaderboard');
+    var artists = leaderBoard.find('li');
+
+    artists.sort(function (a, b) {
+        var numA = parseInt($(a).find('.number').text());
+        var numB = parseInt($(b).find('.number').text());
+        return (numA < numB) ? 1 : (numA > numB) ? -1 : 0;
+    }).appendTo(leaderBoard);
+
+    artists.each(function(index, elem) {
+        $(elem).find(".list_num").text(index+1);
+    });
+}

lectures/09_Web_Development/project/music/core/templates/index.html

@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <link rel="stylesheet" href="/static/core/css/core.css">
+    <script type="text/javascript" src="/static/core/js/jquery.min.js"></script>
+    <script type="text/javascript" src="/static/core/js/centrifuge.min.js"></script>
+    <script type="text/javascript" src="/static/core/js/core.js"></script>
+</head>
+<body>
+<div class="table">
+    <div class="table-cell">
+        <ul class="leader" id="leaderboard">
+            {% for artist in artists %}
+            <li id="artist{{ artist.pk }}">
+                <span class="list_num">
+                    {{ forloop.counter }}
+                </span>
+                <img src="{{ artist.avatar }}" />
+                <h2>
+                    {{ artist.name }}<span class="number">{% firstof artist.capital "0" %}</span>
+                </h2>
+            </li>
+            {% endfor %}
+        </ul>
+    </div>
+</div>
+</body>
+</html>

lectures/09_Web_Development/project/music/core/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

lectures/09_Web_Development/project/music/core/views.py

@@ -0,0 +1,16 @@
+from django.shortcuts import render_to_response
+from core.models import Artist
+from django.db.models import Sum
+
+
+def leaderboard_index(request):
+
+    artists = Artist.objects.annotate(
+        capital=Sum("ruble__nominal")
+    ).order_by('-capital')
+
+    context = {
+        "artists": artists
+    }
+
+    return render_to_response("index.html", context=context)

lectures/09_Web_Development/project/music/manage.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "music.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError:
+        # The above import may fail for some other reason. Ensure that the
+        # issue is really that Django is missing to avoid masking other
+        # exceptions on Python 2.
+        try:
+            import django
+        except ImportError:
+            raise ImportError(
+                "Couldn't import Django. Are you sure it's installed and "
+                "available on your PYTHONPATH environment variable? Did you "
+                "forget to activate a virtual environment?"
+            )
+        raise
+    execute_from_command_line(sys.argv)